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Evaluating vegetated buffer zones for P retention in cereal and grass production

By Jaana Uusi-Kämppä

Abstract

Buffer zones were effective in decreasing losses of eroded soil particles, total P and particulate P in surface runoff from fields ploughed in autumn. The retention of DRP was low, the DRP loads to surface runoff might increase on BZs in winter and early spring. The grass should be cut and the swathe removed on the BZs. Innovatons, with them DRP can be retained on BZs especially in winter and spring >StoP. \ud On pasture and in direct drilling, the mean annual DRP load was slightly smaller on the VBZ with native scrubs and herbs compared with NBZ (p=0.05, p=0.07, respectively). There was a significant treatment x season interaction on surface runoff, TP, and DRP and almost significant on total solids (erosion), and PP

Topics: Air and water emissions
Publisher: Nordic Association of Agricultural Scientists
Year: 2008
OAI identifier: oai:orgprints.org:16038
Provided by: Organic Eprints

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